Imposing-table and proof-press.



F. C. LEETHEM.'

IMPOSING TABLE AND PROOF PRESS.

APPLICATION FILED MAR. 20. I912. RENEWED APR. 9. 1915.

1,139,984. Patented May 18, 1915.

3 SHEETS-SHEET II I I I WITNESSES: I 1 IIVVEAITOR' ATTORNEY I Paten-ted May18, 1915.

3 SHEETS-SHEET 2- V INVEIVTOR ATTORNEY F. C. LEETHEM.

IMPOSING TABLE AND PROOF PRESS.

APPLICATION man MAR. 20. 1912. RENEWED APR- 9. I9l5.

WITNESSES:

F. c. LEETHEM. I IMPOSING TABLE AND PROOF PRESS. APPLICATION FILED MAR. 20, I912. RENEWED APR- 9' I915.

Patented May 18, 1915.

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max c. warm, or MIDDLETOWN,, NEW sem A SIeNoaro .auromAr-rc 'REGFISITEBJNG COMPANY. .A COBPQMTIQN 9F ILLINOIS- mrosm -mam AND racer-rams.

Specification of Letters latent.

' Patonted'May 18, 1915.

Application area-immune, .1912, serial at. 685,047. Renewed Apri19,-1915. Serial No. 20,339.

To all whom it may concern Be .it known that I, FRANK G. LEETHEM, a citizen of the United States, and resident of Middletown, inthecounty of Orange and State of New York, have invented ce tain new and useful Improvements in Imposing- Tables and Proof-Pressea. of .which the :following is a specification.

This invention relates :to the art of making up printers forms and is particularly useful where printing is to be done in two or more colors.

One of the objects of the invention is to produce a machine which will facilitate the accurate placing of the printing plates in the chase when the form is bein .made up.

One of the principal objects :0 the invention is to provide a construction which will enable plates, type or printing sheets,.or forms, to be accurately imposed or alined with respect to a longitudinal .and transverse axis; and the machine is constructed in such a Way that the position of, the plates in the form may be positively deter.- mined either from the face measure or the extremeedge of the bevel. By making up the forms corresponding to the different colors in this way, a substantially perfect register may be secured.

A further object of the invention is to provide the machine with means fortaking 03 a proof sheet in order to compare the register of two or more difierent forms which are being made up simultaneously on different machines. Where only one imachine is in use,;however,..the proof sheet will then be taken ofl simply :for the ordinary purposes.

Further objects of the invention will appear from a thorough understanding of the invention.

In carrying out the invention, the machine preferably comprises a table upon which the form is made up. The table is provided with means, such as an 'alining head or bar, for alining the chase, and is also provided with a movable transverse gage which travels longitudinally on the table and alines the plates or other printing matter, within the I chase in one direction. Moving on this transverse gage which-is the .gag'es. advancing the carriage along the table.

rangement of the plates or forms is a regularone.

' Qne of the objects of the invention is to facilitate the placing. of.a plu-ralityof plates or forms in regular orderthroughout a form.

The invention consists in the general com; bination of parts and simplicity of details hereinafterdescribed, all of which contribute :to .produce an efficient imposing table.

A preferred embodiment of my invention will be particularly described in the following specification, while the broad scope of my invention will be pointedout in the ap pended claims.

In the drawings, which fully illustrate my invention, Figure 1 is a plan of the complete machine, showing a form being made up upon .the table and illustrating the manner in -which :the gages cooperate to aline the plates or forms. Fig. 2 is a side elevation of the table, the supporting legs being broken away. This view also shows a portion of the drum of the proof cylinder broken away to illustrate themanner in which the proof sheet is held thereupon. Fig. 3 is a plan showing a part of the table and illustrating special means for taking a proof'sheet from plates which have been set up in the'form. This arrangement involves the use of a transverse clamp which may be supported by the bars of the'cross gages. Fig. 4 is a front elevation broken away, and illustrates the manner in which the clamping bar for the proof sheet is constructed, and also showing the manner in which it is supported on the gage bars. Fig. 5 is a front elevation showing the forward side of the carriage which supports the main gage and also showing the arrangement for mounting and adjusting the cross This view also shows the means for Fig. 6 is a vertical section taken through the carriage longitudinally with the table, and illustrating the. main gage and the means for. adjusting it and 0 crating it. Fig. 7 is a rear view of the parts shown in Fig. 6 and illustrating means for regulating the descent of a main gage plate. Fig. 8

is a plan showing a portion of the table and illustrating the manner in which the ma-' chine may be employed to locate the corresponding plates at different points on the table. Fig. 9 is a front elevation upon a larger scale showing one of the cross gages in detail, and also illustrating the means for supporting a templet sheet upon the gages, to be used in locating a number of plates on the table as illustrated in Fig. .8. Fig. 10 is a vertical section through the edge of the table, illustrating the construction of a stop, two of which are used in connection With the carriage to limit or adjust its movements along the table. Fig. 11 is a side elevation of a pin, a number of which are used on the table to facilitate the clamping of the chase in position.

Referring more particularly to the parts and especially to Figs. 1 to 6, the machine comprises a large, horizontal table 1, which is supported on legs 2 at a suitable elevation above the floor. One of the longitudinal edges of the table is formed with an upwardly projecting guide head or bolster 3 so that the upper face 4 of the table is slightly depressed, forming a shoulder 5 at the side of the guide head 3, as indicated in Fig. 5. On the under side of the table'l, and near the longitudinal edges thereof I provide longitudinally disposed racks 6 which are held in place by small clip plates 7, received in notches formed in the sides of the racks as indicated in Fig. 5. Mounted to move longitudinally on the table, I provide a carriage 8, said carriage comprising housings 9 and 10 which are disposed opposite each other and connected by a cross bar 11, as indicated in Fig. 6. Above the cross bar 11 the housings are connected by a scale bar 12, the upper edge of which is provided with a scale 13 as indicated. In order to move the carriage along the table, I provide a cross shaft 14, the ends of which are mounted in the housings, and this shaft is provided with pinions 16 which mesh housing is provided with a pointer 20 in the form of a short bar projecting out horizontally at the upper edge of each wheel. This pointer cooperating with the scale, indicates the amount of advance the carriage would have for a given rotation of the wheel.

order to move the gage relatively to the carriage to force the gage plate 23 down onto the face of the form when desired, the bent arms 22 are provided with rigid handles 24. In order to support the gage plate 23 resiliently, the gage bar 21 is provided with an upwardly extending inclined arm 25, the end of which is provided with double forks 26 which support gudgeons 27 which project laterally from a sleeve 28. This'sleeve forms a guide for a sliding stem 29,'the forward end of which is pivotally attached at 30 to the rear side of the scale bar 12. Around the stem 29 a spring 31 is provided, which thrusts against the sleeve. Evidently, if the gage 23 is forced downwardly and released, the spring 31 will extend itself and return the sleeve 28 to its normal position, thereby returning the gage. The extremity of the stem 29 is provided with a split pin 32, which limits the rearward movement of the sleeve.

In order to regulate the descending movement of the gage late 23, the arm 25 is provided with an a justing screw 33, the end of which lies near the rear face of the scale bar. Evidently by adjusting this screw the scale bar will arrest the movement of the gage plate 23 at any point desired. On account of the arrangement. at the forks 26, it will be evident that the stem 29 may be raised so as to disengage the gudgeons 27 from the forks and the gage bar 21 will then not be under the influence of the spring,

plate from the spring action. In order to enable the gage plate 23 to be normally held slightly elevated, but so that it can be let down when desired, I provide a movable button 34 on the rear side of the scale bar as indicated in Fig. 7. This button normally permits only a partial descent of the gage bar. This button is in the form of an arm which swings on the fixed pivot 35. A stop pin36 on the back of the scale bar nor mally supports this button with its enlarged end 37 directly adjacent the end of the ad justing screw 33. By moving the button 34 over against a second stop pin 38 it will be evident that the gage may have a complete descent.

Attached on the forward side of the cross bar 11 I provide a cross slide 39. On this cross slide 39 I provide a pair of cross gageshaving shoes 40 and 41 slipping freely on the slide. These shoes are identical in construction except that one is right, and the other, left hand. And all the parts associ ated with these shoes are likewise similar. One of these shoes is illustrated in detail in Fig. 5. These shoes are intended to slide onto the ends of the slide 39.

The upper portion of each shoe is provided with an upwardly extending for- "wardly inclined clamping .head 42, and these clamping heads are provided with horizontal transverse openings which receive a horizontal connecting rod 43. This connecting rod enables the two shoes to be clamped together so as to slide as one piece along the side. For this purpose the clamping heads 42 are provided with clamping screws 44 as shown. Near the clamping heads 42 the shoes are provided with bosses 45, presenting vertical end faces 46 on the outer side,

adaptedv to come against adjusting screws '47 mounted horizontally in the upper ends of adjusting clamps 48 and 49. Each of these adjusting clamps or blocks slides freely on the slide unless clamped at any position desired by the clamping screw 50. The. adjusting screws 47 have graduated heads 51, coiiperating. with pointers 52 carried by the clamps for indicating the amount of advance which the shoes 40 and 41 will have for a given rotation of the corresponding adjusting screw. These screws can be set as stops to limit the movement of the gages to a point slightly beyond the desired location, and may then be rotated slightly to adjust the gages exactly to the proper point. Each of the shoes 40 and 41 1s provided with a pointer 53 which is offset inwardly and extends upwardly to cooperate with the aforesaid scale 13. The forward or reading edges of these pointers are in exact alinement with the lower edges of cross gage plates 54 which extend longi-v tudinally with the table. The arrangement for mounting and adjusting these cross gage plates 54 will now be described.

The forward sides of the gage shoes 40 and 41 are provided with outwardly projecting horizontal gage bars 55, and on each of these gage bars a pair of cross gages 56 is mounted. The cross gages 56 are attached to the bars 55 by means of clamping screws 57, and comprise'brackets or hangers 58 which may slide along the gage bars.

.The brackets are held against turning on the gage bars by pins 59 which runin slots 60 in the upper sides of the bars. Each bracket 58 is provided with a bifurcated foot 61 between the forks of which a. gage holder 62 is pivotally mounted on a pin 63. These gage holders 62 project transversely of the table, and are provided with adjusting screws 64 co5perating with the projectmg toes 65 of the brackets 58, to enable the gage holders to be adjusted to the face of the form. These aforesaid gage plates 54 in suitable sockets 66, as indicated in Fig. 9.

The upper sides of the gage holders 62 are provided with upwardly extending posts 67, the purpose of which will appear herelnafter, and these posts project upwardly from horizontal seats 68 below which each gage holders carry the gage holder is provided with a transverse,-

wardly curved points 73 which are adapted to descend to the face of the printing plate when desired. These gage stems or pointers 71 are used only in locating plates which' have center marks somewhere on their surfaces and which are not alined by means of the gage plates 54.

In order to limit the movement of the carriage 8, and adjustably move the carriage and the gages carried thereby along the table, the guide head 3 is provided with a pair of clamp stops '74 and 75, one of which is illustrated in detail in Fig. 10. The stop 74 which is near the inner end of the table in Fig. 1, has an adjusting screw 76 which projects toward the carriage, and this adjusting screw 76 has a graduated head 77 coiiperating with the pointer 78 to indicate the amount of movement the carriage will be given for a certain rotation of the adjusting screwl A similar adjusting screw 79 is mounted in the clamp stop 75, and its point also projects toward the carriage. It is similarly provided with a graduated head 80, coiiperating with the pointer 81, and it is further provided with a bent pointer 82, the body of which lies on the upper face of the guide head, so as to cooperate with the longitudinal scale 83 which is countersunk in the inner edge of the guide head 3, as shown in Figs. 1 and 5. The clamping stops 74 and 7 5 are provided with shoes 84*, which run in a dove-tail slot 84 in the edge of the table, and may be clamped in any desired position by clamp- ,ing knobs or hand wheels 85, having threaded stems 86 engaging the shoes as illustrated 1n Fig. 10. A plurality of other shoes 84 are provided in the slot 84 which are of the 55 gages, and when the gages have been set to arrangement enables me'to use extra stops when desired, and the intermediate stops may be unscrewed and removed at will, to permit the carriage to pass their point of location on the table. As the shoes do not project beyond the table edge,..the housing 9 of course is unobstructed by the intermediate shoes it may pass in its movement.

The housing 9 is provided on its sides with stops 87 and 88 which coiiperate respectively with the adjusting screws 76 and 79. The pointer 82 extends along the table so that the reading edge 89, when the end of the adjusting screw 79 is against the stop 88, will lie substantially in alinement with the lower edge of the gage plate 23; and when the zero of the graduated head 80 is under the pointer of the stop 75, an exact alinement between the edge 89 and the gage plate 23 may occur. 1 x

In using the machine to impose plates in the form, a chase 90 is placed on the upper surface of the table with one end abutting against the shoulder 5 of the alining head. The chase employed isof the same thickness as the depth of the shoulder 5, so that when in this position, the upper face of the chase is flush with the upper face of the guide head 3. This chase is then clamped rigidly in position by means of furniture 91 of the form shown, the outer pieces of the furniture being pressed against pins 92, one of which is shown in detail in Fig. 11. These pins have square heads 93 and round shanks 94, which are adapted to be received in any one of a plurality of round sockets 95 which are formed in the table near the ends and the outer longitudinal edge. The rails of the chase are provided with locks 96 for clamping the chase against the furniture. The interior of the chase 90 may be filled with square bases 97, which are preferably cut to dimension on some well known type system, such as the pica system. In alining two plates, such as the plates 98 and 99, the outside dimensions of the plates being known, it is only necessary to adjust the cross gages 56 to the proper distance apart to allow for the desired margin between the plates. In order to do this, one of the clamping screws 44 at least, must be loosened, so as to permit the gage shoes 40 and 41 to approach or recede from each other. The reading on the scale 13 by means of the pointers 53 indicates the distance between the proper position they are clamped rigidly together by means of the clamping screws 44 and the connecting rod 43. The gage shoe 40 is then slid to approximately the proper position to locate the edge of the plate '99, but in doing so, the reading on the scale should be a little less than that desired when the plate is completely alined. Having brought the shoe to this position, the corresponding adjusting clamp 48 is slid up to the shoe 40 until the point of the screw 47 comes a ainst the stop 45. The clamp 48 is then rigi ly secured'to the slide by the clamping screw 50 and the adjusting screw 47'is then rotated so as to advance the shoe 4O slowly along the slide. In this way the two gages will be adjusted simultaneously to locate the plates as desired.

Asindicated in Fig. 1, the gage plates 54 alining them in this ,way, the plates are alined longitudinally by means of the gage plate 23, which may be pressed down at any moment onto the upper face of the form.

When pressed down in this way, the plates are shoved up against the plate 23 and this alines the transverse edges of the plates, as will be readily understood. These transverse edges may be alined at any predetermined position by having recourse to the longitudinal scale 83 on the table edge.

In Fig. 1 Ihave indicated a chase of small dimensions, but large chases may be employed, limited only by the size of the table. In setting up plates, or other parts of large forms such as suggested, the same mode of procedure would be employed, the Plates being alined in pairs. As each pair of plates is alined, they would be clamped in position by means of any usual printers clamps. After alining and fixing one pair of plates, the other plates are successively alined in a transverse row by moving the cross gages along the carriage until the pair of gages nearest to the guide head 3 were brought against the adjacent edge of the second fixed plate, that is, the plate corresponding to the plate 98. The outer gages would then indicate the position of the third plate in the row, and so on.

Where the table is used for setting up forms to use diflerent colors, it is preferable to emplo a table corresponding to each color, an when a form has been completely made up, I may then take 'ofl' proof sheets to ascertain the accuracy of the register of the different colors. In order to enable this to be done, I extend the table at its outer end, and provide a proof cylinder 100 which is mounted on a carriage formed of two oppositely disposed housings 1.01 sliding on the longitudinal edges of the table. These housings 101 are connected by a cross shaft 102, having a hand wheel 103 for rotating it. The shaft 102 is provided with pinions 104 which mesh with the racks 6 in the same manner as the pinions 16, as indicated in Fig. 5. By rotating the wheel 103, the proof cylinder may beadvanced out over the form which had been set up.

The proof cylinder is simply in the form of a hollow drum, having a platen 105 of rubber and provided with an opening 106 in its face in which clamps 107 and 108 are provided for holding the ends of the proof sheet. The proof sheet is simply wrapped around the wheel of the drum in a wellknown manner. The proof cylinder 100 is provided with a cross shaft 109, the ends of which are mounted in eccentric sleeves 110, mounted in bearings 111 in the upper part of the housings. These sleeves, 110, are connected with a bail 112. When the cylinder is not in use, the eccentrics are in the position shown in Fig. 2, with the bail hanging down at the right and resting against the lower part of the housings. If the bail is rotated up through substantially 180 until its-arms 113 come against fixed stops 1151 on the upper ends of the housings, the cylinder will be depressed and bring its face down to the level of the printing plates. -Of course, in the normal or elevated position of the cylinder, it is held sufliciently high to enable it to clear the furniture and all obstructions projecting up from the table, such as the pins 92. Having taken a proof sheet on one table, this proof sheet can then be mounted on the proof cylinder of one of the other tables, and an impression from the form on that table will then show whether the register is perfect.

When it is desired to take a special proof sheet from a form without employing the cylinder 100, I provide for so doing in the manner illustrated in Fig. 3. In order to accomplish this, I push the gages 56 inwardly on their bars 55, or else remove them entirely from their bars, as indicatedin Fig.3. I then secure in place a clamping bar 115, the ends offwhich are provided with clamps 116, which receive the bars 55 as illustrated. Clamping screws 117enable these clamps to be adjusted so as to clamp the bars 55 as illustrated in Fig. 4. The clamping bar 115 then extends transversely over the made up form 118,and is provided on the upper face with a clamping batten 119, which may clamp a proof sheet 120 on the upper face of the cross bar as indicated. This device, is a quickly operating means but is not so accurate as the proof cylinder, and it is generally used first in order to secure approximate register which can then be perfected so far as possible with the proof cylinder. In introducing the bars 55 into the sockets of the clamps 116, theshoes 40 and 4.1 may be slid to the proper distance apart on the slide 39 as will be readily understood. j

The manner of using the machine for the purpose of locating a number of plates of the same size throughout the form, is illus- 125. the clamp 121 trated in Fig. 8. In order to do this, I slide one of the shoes, as the shoe 41, to the far side of the machine, and'I then attach a special clamp 121 to the remaining gages 56. The preferred form of this clamp is shown in Fig. 9. It is-formed of two hangers 122,

. of the plate which is to be located at a succe'ssion of points throughout the form. The outline of this impression is indicated at 128. Now by means of the longitudinal scale 83 on the table and by means of the transverse scale 13, the clamp 121 can be brought successively into the different positions corresponding to the-different plate positions, and while the. celluloid sheet 127 is held in one of these positions, the plate to be located at that point is accuratel alined through the. transparent celluloi by alining it with the outline 128. f

As indicated in Fig. 5, the lower edge of the gage plate'23 is provided with ascale 129. This scale is divided in picas or simply into inches, as shown, or it may be a double scale, like the other scales on the machine,

that is consisting of an inch scale extending along with a type system scale, such as a pica scale. This scale 129 is particularly useful when the gages 56 are being employed to center two plates by means of the centering gage pointers 71. 'In order to do this, when one of these stems has been brought to a certain position, theposition of the tip of the pointer when slid over against the scale 129 can vbe observed and then the. opposite centering stem 71"can be brought so thatits point gives the same reading on the scale. Thetwo centering stems can then be moved out of transverse alinement with each other and can be used to center two plates having center cross marks; in this way avoiding any dependence on the edges of the plates' to secure their proper alinement.

Special attention is called to the alining edge 5 foralining the chases on the table, anda'lso to the fact that the transverse gage angles. This edge 5 therefore operates as a base line -of measurement.

The chases used on the table should be accuratelycut guided as it is, always extends at right On account of the fact that the gage plates can all be raised or lowered, they onable plates to be alined by the edge of the rinting face or by the extreme edge of the eveled edge.

It is understood that the embodiment ofthe invention described above is only one of 'the many embodiments or forms the invenadapted to lie adjacent the table to aline the edges of the printing plates transversely to said table, said second gages having alining edges extending longitudinally with the table and adapted to aline the edges of the printing plates extending longitudinally with said table. Y

2. An imposing'machi-ne, comprising in combination, a table, a gage movable longitudinally thereuponand extending transversely to said table, a pair of. gages mounted to slide onsaid first gage and means for locking said pair of gages together to move in unison independently of said first gage.

3. In an imposing machine, in combination, a table, a carriage, a. gage'carried thereby overhanging said table, said carria-ge being adapted to travel longitudinally along said-table, means for moving said gage relatively to said carriage,- means for moving said carriage longitudinally of said table, a pair of gages mounted to move along said first gage and having parallel gage bars extending substantially parallel with the iongitudinal axis of said table, said gage bars having means cooperating to aline a plate lying therebetween.

4. In an imposing machine, in combination, atable, a gage adapted to travel longitudinally along said table, a pair of gages mounted to slideon said first gage and having parallel gage bars extending substantially parallel with the longitudinal axis of said table, gage plates carried by said last named gages,- and means for locking said last named gages together at predetermined distances apart.

5. In an imposing machine, in combination, a table having an alining head near one edge thereof, adapted to aline a chase supported on said table, a gage traveling longitudinally on said table, a scale extending longitudinally on said table for ascertaining the position of said gage, a pair of gages traveling on said first gage and having gage plates extending substantially parallel with said alining head.

6. In an imposing machine, in combination, a table, a gage traveling longitudinally thereof, a scale extending longitudinally of said table to determine the position of'sa-id gage, adjustable stops attached near the edge of said table for limiting the movement of said carriage, a scale extending along said carriage and transverse to said table, and a pair ofgages adapted to move along said first gage and having gage plates coiiperating with said second named scale.

7. In an imposing machine, in combination, a table, a gage adapted to travel longitudinally thereof, a scale extending longitudinally along said table, a pair of adjustable stops mounted on said table on opposite sides of said gage for limiting the travel of said gage, andm'eans carried by said stops for adjusting said gage.

8. In an imposing machine, in combination, a table, racks extending longitudinally thereof, a transverse gage extending across said table, pinio'n's moving with said gage and meshing with said racks to' advance sald gage along said table, graduated wheels at the sides of said table for rotating said pini'ons, a shaft connectingsaid pinions, a gage plate carried bv said gage, a stop mounted to slide on said table forward of said gage, and having an alining edge adapted to aline with the said gage plate, means carried by said stop for adjusting said gage longitudinally of said table, a scale extending longitudinally with said table and cooperating with the said alining edge of said stop.

9. In an imposin-g machine, in combination, a table, means for alining a chase on said table with a pair of side rails thereof extending substantially parallel with the longitudinal axis of said table, a gage extending transversely'of said table and traveling longitudinally thereof, a pair of gages traveling on said first gage, a scale on said first gage, gage plates carried by said second named gages for alining the edges of printing plates in said .chase and substantially parallel with the longitudinal axis of said table and coiiperating with said scale.

10. In an imposing'n'rachine in combination, a table, means for alining a chase on said table with a pair of side rails thereof extendingsubstantially parallel with the longitudinal axis of said table, a gage extending transversely of said table and traveling longitudinally thereof, a pair of gages traveling along said first gage, a scale on said first gage, gage plates carried by said second named gages for alining the edges of printing plates in said chase and substantially parallel with the longitudinal axis of said table and cooperating with said scale, a connecting rod, and means for adtion, a table, a carriage movable longitudijustably securing said connecting rod to said pair of gages.

-11. In an imposing machine, in combination, a table adapted to support printing plates, a transverse gage extending across said table and adapted to travel longitudinally thereof, a pair of longitudinal gages bars, longitudinal gage plates supportedo n.

said bars and adapted to slide alon the same, means for adjustably locking sai longitudinal gages together, movable stops mounted on said first named gage for limiting the movement of said second named gages. i

13. In an imposing machine, in combination, a table adapted to support printing plates, a transverse gage mounted to travel longitudinally thereof, a gage plate movably mounted on said gage and adapted to descend toward said table, a pair of longitudinal gages mounted to travel on said first named gage, and gage plates carried there by for alining the longitudinal edges of the plates.

14. In an imposing machine, in combination, a table, a carriage mounted to slide thereonand having a transverse gage overhanging the table, said carriage and gage being mounted to. travel longitudinally of .said table, a longitudinal gage mounted to slide on said first gage and having a bar extending longitudinally with said table, a gage plate supported on said bar and having an edge extending substantially parallel with-the longitudinal axis of said table, and means for adjusting said carriage longitudinally along the table to adjust the position of the gages carried thereby.

15. In an imposing machine, in combina nally along said table, a movably supported gage plate adapted to descend .upon said table, means for normally holding said gage plate elevated above said table, and a movable gage supported'on said carriage to cooperate with said first named gage plate in alining a plate on said table.

16. In an imposing machine, in combina tion, a table, a carriage adapted to travel longitudinally thereof, a pivotally supported gage plate having an alining gage, on said carriage, adapted to descend upon said table, a spring resiliently holding said gage plate elevated, and means for regulating the amount of descent of said gage plate.

17. In an imposing machine, in combiner" tion, a table, a =carria' e adapted to travel longitudinally thereo 'a 'movable gage plate mounted on said carriage adapted to descend toward said table, means tending to raisesaid gag plate from said table, a member adapted to move when said age plate descends, andLa-movable stop in t epath oi said'member, normally preventing the complete descent of said-gage plate and adapted to -be moved aside to permit a complete descent thereof.

18. In an imposing machine, in combination, a table, a carriage adapted to travel longitudinally thereof, a'gage plate v supportedonsaidcarriage, a gage mounted to slide on said carriage transversely tosaid.

table, a gage holder mounted on" said last named gage, a gage plate mountedon .said

age holder, 831d. gage holder having a post and detachable means mounted on said post to cooperate with said gage plate in alining a printing plate. I

19. In an imposing machine, in combination, a table, a carriage mounted to travel longitudinally thereof, gages 'mounted on said carriage for alining the edges of the printing plates, and means normally held at the end of said-table and adapted'to advance over said table for applying a proof sheet to the plates mounted on said table,

said gages and said means for applying the 9 proof sheet having parallel alining axes.

20. In an imposing machine, in combination, a table adapted to support printing plates, a carriage mounted to travel longi-' tudinally thereof, gages mounted'on said carriage cotiperating to aline printing plates on said table, a proof cylinder normally disposed attheend of said table and remote from the plates mounted to travel longitudinally of said table and adapted to hold a proof sheet to be applied to the alined plates, the axis of said proof cylinder being pag'lallel' with the transverse axis of. said ta e.

tion, .a table, a rack mounted thereupon, a carriage adapted to travel. longitudinally on said table, a pinion in connection with said carriage meshing with said rack to advance said carriage, gages mounted on said carriage and cooperating to aline a printing plate, a proof cylinder having its longitudinal axis at right angles to said rack, said 21. In an imposing machine, in combinaproof cylinder being normally disposed at the end of said table and remote from the position of the plate, a carriage for saidfor advancing said cylinder over the printing plates set up on said table, and means for attaching a proof sheet to said cylinder to be applied to said plates.-

. 22. In an imposing machine, in combina- 23. In an imposing machine, in combina-.

tion, a table, a carriage mounted to travel longitudinally thereof, a slide mounted on said carriage, gages mounted to move along said slide, said gages having parallel horizontal bars, and a clamp having sockets received on said bars, said clamp being adapt- 'cd to support a proof sheet adjacent to the face of said table.

24. In an imposing machine, in combination, a table having an alining edge and having a plurality of sockets in the upper face thereof opposite said alining edge and parallel therewith, a plurality of removable pins adapted to be received in said sockets, a chase mounted on said table, furniture between said pins and said chase for holding said chase in position on said table, a carriage traveling longitudinally along said table, a transverse gage plate mounted on said carriage extending across said table at right angles to said alining edge, and longitudinal gages adapted tomove alongsaid carriage transversely to said table, and gage plates carried by said last named gages for alining the edges of printing plates longitudinally with said table. L 25. In an imposing machine, in combination, a table adapted to support printing plates, 'a gage mounted to travel longitudinally thereof, a movable gage plate carried by said gage having an alining edge extending across said table adapted to descend to said table and detachable means for normally holding said gage plate elevated to a point above the printing plates and so that said gage may pass over and out of contact with the plates.

26. In an imposing machine, in combination, a table, a gage mounted to travel longitudinally thereof, a movable gage plate adapted to descend upon said table, a menibcr connected with said gage plate having forks, a spring pressed member received in said forks and detachable therefrom, and a spring normally tending to hold said gage plate elevated above said table.

27. In an imposing machine, in combination, a table, a carriage mounted to travel longitudinally thereof, said carriage comprising a transverse bar, a movable gage plate supported on said carriage and adapted to descend upon said table, an arm in connection with said gage plateand disposed opposite to said transverse bar, a spring between said transverse bar and said arm tending to hold said gage plate elevated above said table, and an adjusting screw carried by said arm and adapted to engage said transverse bar to limit the downward movement of said gage plate.

28. In an imposing machine, in combination, a table, a carriage mounted to travel longitudinally thereof, said carriage having a transverse bar extending across said table, a gage plate pivotally supported on said carriage, and adapted to descend toward said table, a spring tending to hold said gage plate elevated, an adjusting screw adapted to move when said gage plate descends and a movable stop in the path of said adjusting screw adapted to control the amount of descent of said gage plate.

29. In an imposing machine, in combination a gage, a scale carried thereby, a pair of gages sliding longitudinally with respect to said scale and supported on said first gage, said last named gages having clamping heads, a connecting rod extending through said clamping heads, means for clamping the same in said clamping heads to lock said last named gages together and gage plates carried by said last named gages extending substantially at right angles to said first named gage.

30. In an imposing machine, in combination, a table, a carriage overhanging said table and adapted to move along the same, a gage comprising a block sliding on said carriage transversely to said table, said gage having a gage plate with an alining edge extending longitudinally with said table, and meansfor adjusting said gage plate with respect to said block transversely to said table.

31. In an imposing machine, in combination, a table adapted to receive printing plates, a carriage traveling longitudinally thereof, a pair of gages traveling along said carriage and transversely of said table and having parallel alining edges for alining plates between said gages, and stops adjustably mounted on said carriage to limit the movement of said gages.

32. In an imposing machine, in combination, a table, a carriage traveling longitudinally thereof, a pair of gages traveling along said carriage and transversely of said table, stops adjustably mounted on said carriage to limit the movement of said gages, and means carried by said stops for adjusting said gages along said carriage.

33. In an imposing machine, in combination, a table, a carriage traveling along the same, a pair of gages comprising blocks mounted to travel along said carriage and transversely to said table, said gages having messes gage plates extending longitudinally with said table, and means for adjusting said gages relatively to said blocks longitudinally of said table.

34. In an imposing machine, in combination, a table having an alining edge extending longitudinally near one edge of said tahis, a gage cooperating therewith, and means for guiding said gage in a straight line at right angles to said alining edge to move across said table, and means for simultaneously guiding said gage to move in a straight line parallel with said alining edge to move longitudinally of said table.

35. "in an imposing machine, in combination, a table, a carriage traveling along the same, gages on said carriage, shoes guided on said table, and detachable stops on said shoes for limiting the movement of said carriage, said carriage being arranged to pass said shoes when said-stops are detached therefrom. 4

36. An imposing machine comprising in combination, a table having gages for successively setting up printing forms With printing plates, and means movably mounted on said table for transporting a proof sheet over said table and adapted to apply said proof sheet to the successive forms which may be set up on said table.

Signed at New York city in the county of New York and State of New York this 15th day of March A. D. 1912.

FRANK C. LEETHEM Witnesses:

ELIZABETH A. KLINE, MERLE 1. ST. JOHN. 

